Bump the regular-updates group in /cdk with 2 updates

Bumps the regular-updates group in /cdk with 2 updates: [ruff](https://github.com/astral-sh/ruff) and [cdk8s-plus-30](https://github.com/cdk8s-team/cdk8s-plus).


Updates `ruff` from 0.8.6 to 0.9.2
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.8.6...0.9.2)

Updates `cdk8s-plus-30` from 2.2.16 to 2.2.17
- [Release notes](https://github.com/cdk8s-team/cdk8s-plus/releases)
- [Commits](cdk8s-team/cdk8s-plus@cdk8s-plus-30/v2.2.16...cdk8s-plus-30/v2.2.17)

---
updated-dependencies:
- dependency-name: ruff
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: regular-updates
- dependency-name: cdk8s-plus-30
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: regular-updates
...

Signed-off-by: dependabot[bot] <[email protected]>

cdk/pyproject.toml

@@ -9,8 +9,8 @@ package-mode = false
 [tool.poetry.dependencies]
 python = ">=3.10,<3.13"
 ca-cdk-constructs = {git = "https://github.com/citizensadvice/ca-cdk-constructs", rev = "v0.9.0"}
-ruff = "^0.8.6"
-cdk8s-plus-30 = "^2.2.16"
+ruff = "^0.9.2"
+cdk8s-plus-30 = "^2.2.17"
 
 [tool.poetry.group.dev.dependencies]
 pytest = "^8.3.4"